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Coronary Artery Disease clinical trials

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NCT ID: NCT03735186 Completed - Inflammation Clinical Trials

Exercise and Coronary Heart Disease Risk Markers in Male Smokers and Non-Smokers

Start date: August 4, 2017
Phase: N/A
Study type: Interventional

The present study will investigate the effect of acute exercise on fasting and postprandial risk markers for coronary heart disease (CHD) in healthy male cigarette smokers and non-smokers. Participants will complete two, 2-day trials in a random crossover design separated by an interval of at least 1 week. On day 1, participants will rest (control) or complete 60 minute of treadmill exercise at 60% of maximum oxygen uptake (exercise). On day 2, participants will rest and consume two high fat meals (breakfast and lunch) over an 8-h period during which 13 venous blood samples and nine blood pressure measurements will be taken at pre-determined intervals. It is hypothesised that men who smoke cigarettes will exhibit impaired fasting and postprandial metabolic risk markers compared to non-smokers, but a single bout of exercise will be equally, if not more, efficacious for improving the CHD risk factor profile in smokers than non-smokers.

NCT ID: NCT03721159 Completed - Coronary Disease Clinical Trials

Quantification of Micro-RNA 146-a in Chronic Periodontitis and Coronary Heart Disease Subjects

Start date: October 1, 2017
Study type: Observational

The expression and quantification of Micro-RNA 146-a, was analyzed in the subgingival plaque samples of generalized chronic periodontitis patients with and without coronary heart disease. The demographic variables and periodontal parameters were assessed and correlated with expression of micro-RNA 146-a. The quantification of levels of micro-RNA 146-a was done using Real time Polymerase chain reaction. ( RT-PCR)

NCT ID: NCT03688815 Completed - Clinical trials for Ischemic Heart Disease

Dipyridamole Induced Ischemia and Biomarkers

Start date: January 1, 2009
Study type: Observational

Analysis of certain biomarkers and transient myocardial perfusion deficit revealed by myocardial perfusion scintigraphy.

NCT ID: NCT03657199 Completed - Clinical trials for Coronary Artery Disease

Early Silent Graft Failure in Off-pump Coronary Artery Bypass Grafting: A Computed Tomography Analysis

Start date: January 1, 2017
Study type: Observational

Aortocoronary bypass surgery is one of the most common operations in the western world. The goal of the surgeon is to perform a complete revascularization of the coronary arteries with the best, available bypass material. Aortocoronary bypass surgery can be performed with (on-pump) or without (off-pump) the heart lung machine. If the operation is performed without the heart lung machine, the heart is continuously beating while the surgeon sews the bypass to the diseased coronary artery. In randomized trials, the benefits of the off-pump technique in the hands of experienced surgeons in terms of shorter operating times, less transfusions and less pulmonary and renal complications were proven. A criticism of the off-pump technique is the reduced number of distal anastomoses, which means that fewer coronary arteries may be connected with bypass grafts because of the technically sophisticated situation. A worse quality of the connection (anastomosis) between coronary artery and bypass is often discussed, leading to a bypass occlusion already in the early stage after surgery resulting in more re-interventions on the coronary vessels. So-called silent bypass failure without clinical correlation has been examined in three relevant studies including both, the on- and the off-pump technique, with inhomogenous results. In addition to the technique, other parameters such as the degree of narrowing (stenosis) of the diseased coronary artery and collateralization of a closed coronary artery may play a role in early occlusion. All bypass patients after off-pump surgery receive routinely a computed tomographic examination of the heart. With this method, silent bypass occlusions without clinical correlation, i.e. cardiac infarction, elevated cardiac laboratory parameters or ECG changes, can be detected easily. In case of an occlusion of a relevant bypass, an intervention before discharge can be planned and performed. We would like to investigate the occlusion rate of this retrospective patient cohort after off-pump surgery and the potential risk factors, that may influence on early graft failure. We hypothesize, that early graft failure depends not only on the choice of the graft material, but also on the local grade of coronary stenosis, the collateralisation of occluded coronary vessels and the intraoperative flow results, as well as on the region of the target vessel.

NCT ID: NCT03651791 Completed - Clinical trials for Ischemic Heart Disease

In Vivo Tracking of USPIO Labeled MSC in the Heart

Start date: May 2013
Phase: Phase 1
Study type: Interventional

To evaluate the ability to trace iron oxide-labeled mesenchymal stromal cells with magnetic resonance imaging (MRI) after NOGA-guided injection therapy into the myocardium in patients with ischemic heart disease.

NCT ID: NCT03627455 Completed - Clinical trials for Coronary Artery Disease

Troponin I and T and Adverse Outcomes in Patients With and Without Diabetes Mellitus After Coronary Intervention

Start date: January 1, 2003
Study type: Observational

Elevated levels of troponin are associated with future MACE. Data on the prognostic value of high sensitive troponin T (hs-TnT) as compared to high sensitive troponin I (hs-TnI) in diabetic and non-diabetic patients are sparse. We aimed to assess the risk for MACE according to gender and diabetes status and to compare the prognostic value of hs-TnT and hs-TnI with regards to clinical outcomes in diabetic and non-diabetic patients undergoing percutaneous coronary intervention (PCI).

NCT ID: NCT03622203 Completed - Coronary Disease Clinical Trials

Outcome of CHAllenging lesioNs and Patients Treated With Polymer Free Drug-CoatEd Stent

Start date: January 1, 2016
Study type: Observational [Patient Registry]

Length of DAT (Dual Antiplatelet therapy) represents one of the most challenging choices for interventional cardiologist. Prolonged DAT reduces risk of subsequent MI (Myocardial Infarction) with an increase in major bleedings, consequently with a neutral effect on survival [1]. Recently a Polymer-free Drug-Coated coronary stent has been tested in a randomized controlled trial with only one month of DAT due to its peculiar features, with an increased efficacy compared to BMS (Bare Metal Stent) and with a not negligible risk of ST at one year (about 2%)[2,3]. The RCT despite its promising design (inclusion of high risk patients like those with previous bleeding or with severe renal disease) showed a major limitation, that is: 1. patients who are often offered a Biofreedom in real life, that is those with active cancer or needing major surgery or on OAT (Oral Anticoagulation) 2. and patients with bifurcation and multivessel disease, that is those with an increased risk of ST [4] 3. STEMI patients [5] were underrepresented (less than 30%). Consequently we performed this multicenter study to evaluate safety and efficacy of Biofreedom in real life patients. POCE (a composite end point of death, myocardial infarction, target lesion revascularization) and DOCE (cardiac death, MI-TLR and TLR) will be the primary end points, while its single components will be the secondary ones along stent thrombosis and with bleedings (Barc classification). At least 12 months The Leaders FREE (2) reported an incidence of MACE of 9.4% at one year in overall patients. If there is a true difference in favour of the experimental treatment of 1.2%, then 870 patients are required to be 80% sure that the upper limit of a one-sided 95% confidence interval (or equivalently a 90% two-sided confidence interval) will exclude a difference when compared to non selected patients of more than 2% [5] All patients implanting Biofreedom with these prespecified analysis: 1. Clinical - Diabetic patients (both insulin and not insulin depenent) - Requiring oral anticoagulation - On active cancer (that is requiring chemio or radio-therapy and or surgery) - Requiring surgery - STEMI 2. Interventional - Bifurcation (both provisional both 2 stents) - Multivessel - Ostial

NCT ID: NCT03615963 Completed - Clinical trials for Coronary Artery Disease

Aortic Stiffness and Distensibility as Predictor to Severity of Coronary Artery Disease

Start date: October 1, 2017
Study type: Observational

Assess the relationship of Aortic root distensibility and stiffness with the extent of coronary artery disease as assessed by SYNTAX score compared to a matched cohort of patients with normal coronary angiography

NCT ID: NCT03611933 Completed - Clinical trials for Coronary Artery Disease

Effects of Position Change After PCI

Start date: July 2014
Phase: N/A
Study type: Interventional

Aims and objectives: To determine the effect of position change that is applied after percutaneous coronary intervention on vital signs, back pain, and vascular complications. Background: In order to minimize the post-procedure complications, patients are restricted to prolonged bed rest that is always accompanied by back pain and and hemodynamic instability. Design: Randomized-controlled quasi experimental study Methods: The study sample chosen for this study included 200 patients who visited a hospital in Turkey between July 2014 and November 2014. Patients were divided into two groups by randomization. Patients in the control group (CG, n = 100) were put in a supine position, in which the head of the bed (HOB) was elevated to 15°, the patient's leg on the side of the intervention was kept straight and immobile; positional change was applied to patients in the experimental group (EG, n = 100).

NCT ID: NCT03584321 Completed - Clinical trials for Non-Obstructive Coronary Artery Disease

Retrospective Study to Estimate the Current Status of Patients With Non-Obstructive coroNary Artery Disease

Start date: September 13, 2017
Study type: Observational

The study will estimate the current status of participants with non-obstructive coronary artery disease confirmed via coronary angiography.